TK75005
OVP
DRV
EA
IN
V
CC
GND
EA
OUT
F
B
C
T
ADVANCED
INFORMATION
LOW-COST FLEXIBLE PWM CONTROLLER
FEATURES
■ Can Be Used For Power Factor Correction/Line
Harmonics Reduction to Meet IEC1000-3-2
Requirements
■ Maximum Duty Ratio 89% (typ.)
■ Low Standby Current for Current-Fed Start-Up
■ Current-Mode or Voltage-Mode Control
■ Internal User-Adjustable Slope Compensation
■ Pulse-by-Pulse Current Limiting
DESCRIPTION
The TK75005 is an 8-pin PWM controller suitable for both
voltage-mode and current-mode control. It also has
advanced features not available in controllers with a higher
pin count. One such feature is a sawtooth current flowing
out of the feedback pin (FB), which provides a slope
compensation ramp (in current mode applications) in
proportion to the resistance terminating that FB pin.
The TK75005 offers the same features as the TK75003
with the addition of the Error Amplifier and the Overvoltage
Protection (OVP) functions, and the deletion of the
Overcurrent Frequency Reduction feature.
This PWM has features similar to the UC3842 (please
refer to UC3842 Comparison Section).
APPLICATIONS
■ Power Factor Correction Converters
■ Off-Line Power Supplies
■ Industrial Power Supplies
■ Off-Line Battery Charger
TK75005
75005
SOP-8
DRV
75005
DIP-8
GND
OVP
C
T
V
CC
EA
OUT
EA
IN
F
B
BLOCK DIAGRAM
I
CT
C
T
I
CHG
175 µA
I
DS
1.975 mA
OSCILLATOR
BANDGAP
REFERENCE
f
CLK
8.0 V
UVLO
10.0 V
ORDERING INFORMATION
TK75005
GM STAGE
PWM LATCH
S
R
Q
GND
EA
OUT
SLOPE
Package Code
PACKAGE CODE
D: DIP-8
M: SOP-8
TEMPERATURE RANGE
C: -40 TO 80 C
Tape/Reel Code
Temp. Range
TAPE/REEL CODE
TL: Tape Left
MG: Magazine
OVP
FB
OVERVOLTAGE
DETECTOR
2.6 V
CURRENT
CONTROL
DETECTOR
1.02 V
COMPENSATION
January 1999 TOKO, Inc. Page 1
V
CC
DRV
EA
IN
2.5 V
TK75005
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (Low Impedance) ............................ 18 V
Supply Voltage (ICC < 30 mA) ...................... Self Limiting
Power Dissipation (Note 1) ................................ 800 mW
Output Energy ...........................................................5 µJ
CT and FB Pins ........................................................ 10 V
TK75005 ELECTRICAL CHARACTERISTICS
Test Conditions: VCC = 13 V, CCC = 4.7 µF, CT = 680 pF, C
unless otherwise specified.
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
Junction Temperature ...........................................150 °C
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-20 to +80 °C
Extended Temperature Range................... -40 to +85 °C
Lead Soldering Temperature (10 s) ......................235 °C
= 1000 pF, TA = Tj = Full Operating Temperature Range,
DRV
I
I
V
V
V
)TRATS(CC
)NO(CC
)NO(CC
)FFO(CC
TSYH
siseretsyHOLVU 10.2V
C(NOITCESROTALLICSO
f
VRD
V
)KP(TC
V
)LV(TC
I
)SID(TC
C
)XAM(T
egatloVkaeP 5.22.39.3V
egatloVyellaV 1.1V
tnerruCylppuSpu-tratSVotecruoStnerruC
tnerruCylppuSgnitarepO
AE
AE
NOegatloVOLVUV
FFOegatloVOLVUV
)NIP
T
T
AT=j
)3etoN(niPVRDtaycneuqerF
T
AT=j
tnerruCegrahcsiDV
V2=2171Am
NI
V3=5.410.91Am
NI
CC
CC
C°52=09001011zHk
V=
TC
)KP(TC
niP52.09.0Am
NI
drawpUspeewS90111V
drawnwoDspeewS789V
egnaRlluF=58511zHk
ecnaticapaCgnimiTmumixaM 7.4Fn
0.18.10.3Am
SNOITCESNOITASNEPMOCEPOLSDNA)NIPPVO(NOITCETORPEGATLOVREVO,ROTCETEDTNERRUC
T
V
DCC
t
DCC
V
DVO
t
PVO
i
)KP(CS
i
)LV(CS
i
)LV-KP(CS
tnerruC
tnerruC
yellaV
rotceteDlortnoCtnerruC
egatloVecnerefeR
noitcetorPegatlovrevO
egatloVecnerefeRrotceteD
kaePnoitasnepmoCepolS
yellaVnoitasnepmoCepolS
otkaePnoitasnepmoCepolS
AT=j
T
AT=j
niPVRDotyaleDnoitagoporPV
niPVRDotyaleDnoitagoporPV
T
AT=j
T
AT=j
C
T
BF
PVO
AE
C
T
AE
C
T
AE
C°52=99.020.150.1V
egnaRlluF=669.0770.1V
V2ot0morfspets08081sn
C°52=15.206.296.2V
egnaRlluF=64.247.2V
V3ot2morfspets08081sn
V=niP
)HGIH(TUO
V=niP
)HGIH(TUO
V=niP
)HGIH(TUO
)KP(TC
)LV(TC
)KP(TC
T,
AT=j
)2etoN(,
T,
AT=j
)2etoN(,
T,
AT=j
)2etoN(,
,C°52=
,C°52=
,C°52=
052-502-061-Aµ
55-03-5-Aµ
512-571-531-Aµ
Page 2 January 1999 TOKO, Inc.
TK75005 ELECTRICAL CHARACTERISTICS (CONT.)
Test Conditions: VCC = 13 V, CCC = 4.7 µF, CT = 680 pF, C
unless otherwise specified.
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
= 1000 pF, TA = Tj = Full Operating Temperature Range,
DRV
TK75005
AE(SNOITCESEGATSMGDNAREIFILPMARORRE
NI
T
V
fer
I
BI
A
DV
egatloVecnerefeR
tnerruCsaiBtupnI 0.1Aµ
niaGpooLnepO5657Bd
AT=j
TAT=
j
AEDNA
)SNIP
TUO
C°52=34.205.275.2V
egnaRlluF=73.246.2V
htdiwdnaBniaGytinU)3etoN(2zHM
RRSPoitaRnoitcejeRylppuSrewoP)3etoN(0607Bd
I
I
V
V
I
I
)KNIS(TUO
)ECRUOS(TUO
V
)HGIH(TUO
V
)WOL(TUO
)XAM(MG
)NIM(MG
I
I
)HGIH(TUO
)WOL(TUO
)XAM(TUO
)NIM(TUO
tnerruCkniStuptuOAE
AEta
AEta
niPAE
TUO
niPAE
TUO
tnerruCecruoStuptuOAE
egatSMGmorfniPBFtaAE
egatSMGmorfniPBFtaAE
TUO
TUO
NI
NI
V2.1=28.6Am
V5.3=1.1-5.0-Am
V2@5.31.4V
V3@4.07.0V
)WOL(TUO
)HGIH(TUO
V2@BF,59.1-05.1-50.1-Am
V2@BF,0.1-Aµ
)NIPVRD(NOITCESTUPTUO
D
t
)XAM(VRD
)ESIR(VRD
emiTesiRdaolFp00015257sn
oitarytuDmimixaM689829%
t
V
V
Note 1: Power dissipation for both packages (TK75005M and TK75005D) is 800 mW when mounted. Derate at 6.4 mW/°C for operation above
Note 2: For temperature dependence refer to "Slope Compensation Peak Current vs. Temperature" graph.
Note 3: Guaranteed by design; not 100% tested.
)LLAF(VRD
)HGIH(VRD
)WOL(VRD
25 °C.
emiTllaFdaolFp00015257sn
I
HGIHegatloVtuptuO
WOLegatloVtuptuO
VRD
I
VRD
I
VRD
I
VRD
I
VRD
Am04-=1.010.11V
Am001=0.018.01V
Am04-=1.052.0V
Am001=2.005.0V
,Am5=VNIV6=9.005.1V
January 1999 TOKO, Inc. Page 3